1: (0 9 15)

(0 11 9 20 1)(2 21 19 17 3)(4 16 13)(5 15 7)(6 14 12)(8 18 10)

2: (4 16 13)

(0 11 9 20 1)(2 21 19 17 3)(4)(5 15 7)(6 14 12)(8 18 10)(13)(16)

3: (6 14 12)

(0 11 9 20 1)(2 21 19 17 3)(4)(5 15 7)(6)(8 18 10)(12)(13)(14)(16)

4: (8 18 10)

(0 11 9 20 1)(2 21 19 17 3)(4)(5 15 7)(6)(8)(10)(12)(13)(14)(16)(18)